Remove all defines which aren't needed after correctly including the
kernel header files.
Link: https://lkml.kernel.org/r/20230612095347.996335-2-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Stefan Roesch <shr@devkernel.io>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
It is wrong to include unprocessed user header files directly. They are
processed to "<source_tree>/usr/include" by running "make headers" and
they are included in selftests by kselftest makefiles automatically with
help of KHDR_INCLUDES variable. These headers should always bulilt first
before building kselftests.
Link: https://lkml.kernel.org/r/20230612095347.996335-1-usama.anjum@collabora.com
Fixes: 07115fcc15 ("selftests/mm: add new selftests for KSM")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Stefan Roesch <shr@devkernel.io>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Building and running the subsuite 'damon' of kselftest, shows the
following issues:
selftests: damon: debugfs_attrs.sh
/sys/kernel/debug/damon not found
By creating a config file enabling DAMON fragments in the
selftests/damon/ directory the tests pass.
Link: https://lkml.kernel.org/r/20230412092854.3306197-1-anders.roxell@linaro.org
Fixes: b348eb7abd ("mm/damon: add user space selftests")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
As per a discussion with Muhammad Usama Anjum [1], the following is how
one is supposed to build selftests:
make headers && make -C tools/testing/selftests/mm
Change the selftest build system's lib.mk to fail out with a helpful
message if that prerequisite "make headers" has not been done yet.
[1] https://lore.kernel.org/all/bf910fa5-0c96-3707-cce4-5bcc656b6274@collabora.com/
[jhubbard@nvidia.com: abort the make process the first time headers aren't detected]
Link: https://lkml.kernel.org/r/14573e7e-f2ad-ff34-dfbd-3efdebee51ed@nvidia.com
[anders.roxell@linaro.org: fix out-of-tree builds]
Link: https://lkml.kernel.org/r/20230613074931.666966-1-anders.roxell@linaro.org
Link: https://lkml.kernel.org/r/20230606071637.267103-12-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
There are only three uffd*() routines that are used outside of the uffd
selftests. Leave these in vm_util.c, where they are available to any mm
selftest program:
uffd_register()
uffd_unregister()
uffd_register_with_ioctls().
A few other uffd*() routines, however, are only used by the uffd-focused
tests found in uffd-stress.c and uffd-unit-tests.c. Move those routines
into uffd-common.c.
Link: https://lkml.kernel.org/r/20230606071637.267103-10-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
MADV_PAGEOUT, MADV_POPULATE_READ, MADV_COLLAPSE are conditionally
defined as necessary. However, that was being done in .c files, and a
new build failure came up that would have been automatically avoided had
these been in a common header file.
So consolidate and move them all to vm_util.h, which fixes the build
failure.
An alternative approach from Muhammad Usama Anjum was: rely on "make
headers" being required, and include asm-generic/mman-common.h. This
works in the sense that it builds, but it still generates warnings about
duplicate MADV_* symbols, and the goal here is to get a fully clean (no
warnings) build here.
Link: https://lkml.kernel.org/r/20230606071637.267103-9-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This fixes a real bug, too, because xstate_size() was assuming that
the stack variable xstate_size was initialized to zero. That's not
guaranteed nor even especially likely.
Link: https://lkml.kernel.org/r/20230606071637.267103-8-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The uffd tests generate two compile time warnings from clang's
-Wformat-security setting. These trigger at the call sites for
uffd_test_start() and uffd_test_skip().
1) Fix the uffd_test_start() issue by removing the intermediate
test_name variable (thanks to David Hildenbrand for showing how to do
this).
2) Fix the uffd_test_skip() issue by observing that there is no need for
a macro and a variable args approach, because all callers of
uffd_test_skip() pass in a simple char* string, without any format
specifiers. So just change uffd_test_skip() into a regular C function.
Link: https://lkml.kernel.org/r/20230606071637.267103-7-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
These new build products were left out of .gitignore, so add them now.
Link: https://lkml.kernel.org/r/20230606071637.267103-6-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
We cannot depend upon git to reliably retain the executable bit on shell
scripts, or so I was told several years ago while working on this same
run_vmtests.sh script. And sure enough, things such as test_hmm.sh are
lately failing to run, due to lacking execute permissions.
Fix this by explicitly adding "bash" to each of the shell script
invocations. Leave fixing the overall approach to another day.
Link: https://lkml.kernel.org/r/20230606071637.267103-5-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The stop variable is a char*, and the code was assigning a char value to
it. This was generating a warning when compiling with clang.
However, as both David and Peter pointed out, stop is not even used
after the problematic assignment to a char type. So just delete that
line entirely.
Link: https://lkml.kernel.org/r/20230606071637.267103-4-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Dummy variables are required in order to make these two (similar)
routines work, so in both cases, declare the variables as volatile in
order to avoid the clang compiler warning.
Furthermore, in order to ensure that each test actually does what is
intended, add an asm volatile invocation (thanks to David Hildenbrand
for the suggestion), with a clarifying comment so that it survives
future maintenance.
Link: https://lkml.kernel.org/r/20230606071637.267103-3-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "A minor flurry of selftest/mm fixes", v3.
A series that fixes up build errors and warnings for at least the 64-bit
builds on x86 with clang.
The series also includes an optional "improvement" of moving some uffd
code into uffd-common.[ch], which is proving to be somewhat controversial,
and so if that doesn't get resolved, then patches 9 and 10 may just get
dropped. They are not required in order to get a clean build, now that
"make headers" is happening.
[1]: https://lore.kernel.org/all/20230602013358.900637-1-jhubbard@nvidia.com/
This patch (of 11):
uffd_minor_feature() was unused. Remove it in order to fix the associated
clang build warning.
Link: https://lkml.kernel.org/r/20230606071637.267103-1-jhubbard@nvidia.com
Link: https://lkml.kernel.org/r/20230606071637.267103-2-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Since commit f079a020ba ("selftests: memcg: factor out common parts of
memory.{low,min} tests"), the value used in second alloc_anon has changed
from 148M to 170M. Because memory.low allows reclaiming page cache in
child cgroups, so the memory.current is close to 30M instead of 50M.
Therefore, adjust the expected value of parent cgroup.
Link: https://lkml.kernel.org/r/20230522095233.4246-2-haifeng.xu@shopee.com
Fixes: f079a020ba ("selftests: memcg: factor out common parts of memory.{low,min} tests")
Signed-off-by: Haifeng Xu <haifeng.xu@shopee.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Similar to the COW selftests, also use io_uring fixed buffers to test if
long-term page pinning works as expected.
Link: https://lkml.kernel.org/r/20230519102723.185721-4-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Let's add a new test for checking whether GUP long-term page pinning works
as expected (R/O vs. R/W, MAP_PRIVATE vs. MAP_SHARED, GUP vs.
GUP-fast). Note that COW handling with long-term R/O pinning in private
mappings, and pinning of anonymous memory in general, is tested by the COW
selftest. This test, therefore, focuses on page pinning in file mappings.
The most interesting case is probably the "local tmpfile" case, as that
will likely end up on a "real" filesystem such as ext4 or xfs, not on a
virtual one like tmpfs or hugetlb where any long-term page pinning is
always expected to succeed.
For now, only add tests that use the "/sys/kernel/debug/gup_test"
interface. We'll add tests based on liburing separately next.
[akpm@linux-foundation.org: update .gitignore for gup_longterm, per Peter]
Link: https://lkml.kernel.org/r/20230519102723.185721-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "selftests/mm: new test for FOLL_LONGTERM on file mappings".
Let's add some selftests to make sure that:
* R/O long-term pinning always works of file mappings
* R/W long-term pinning always works in MAP_PRIVATE file mappings
* R/W long-term pinning only works in MAP_SHARED mappings with special
filesystems (shmem, hugetlb) and fails with other filesystems (ext4, btrfs,
xfs).
The tests make use of the gup_test kernel module to trigger ordinary GUP
and GUP-fast, and liburing (similar to our COW selftests). Test with
memfd, memfd hugetlb, tmpfile() and mkstemp(). The latter usually gives
us a "real" filesystem (ext4, btrfs, xfs) where long-term pinning is
expected to fail.
Note that these selftests don't contain any actual reproducers for data
corruptions in case R/W long-term pinning on problematic filesystems
"would" work.
Maybe we can later come up with a racy !FOLL_LONGTERM reproducer that can
reuse an existing interface to trigger short-term pinning (I'll look into
that next).
On current mm/mm-unstable:
# ./gup_longterm
# [INFO] detected hugetlb page size: 2048 KiB
# [INFO] detected hugetlb page size: 1048576 KiB
TAP version 13
1..50
# [RUN] R/W longterm GUP pin in MAP_SHARED file mapping ... with memfd
ok 1 Should have worked
# [RUN] R/W longterm GUP pin in MAP_SHARED file mapping ... with tmpfile
ok 2 Should have worked
# [RUN] R/W longterm GUP pin in MAP_SHARED file mapping ... with local tmpfile
ok 3 Should have failed
# [RUN] R/W longterm GUP pin in MAP_SHARED file mapping ... with memfd hugetlb (2048 kB)
ok 4 Should have worked
# [RUN] R/W longterm GUP pin in MAP_SHARED file mapping ... with memfd hugetlb (1048576 kB)
ok 5 Should have worked
# [RUN] R/W longterm GUP-fast pin in MAP_SHARED file mapping ... with memfd
ok 6 Should have worked
# [RUN] R/W longterm GUP-fast pin in MAP_SHARED file mapping ... with tmpfile
ok 7 Should have worked
# [RUN] R/W longterm GUP-fast pin in MAP_SHARED file mapping ... with local tmpfile
ok 8 Should have failed
# [RUN] R/W longterm GUP-fast pin in MAP_SHARED file mapping ... with memfd hugetlb (2048 kB)
ok 9 Should have worked
# [RUN] R/W longterm GUP-fast pin in MAP_SHARED file mapping ... with memfd hugetlb (1048576 kB)
ok 10 Should have worked
# [RUN] R/O longterm GUP pin in MAP_SHARED file mapping ... with memfd
ok 11 Should have worked
# [RUN] R/O longterm GUP pin in MAP_SHARED file mapping ... with tmpfile
ok 12 Should have worked
# [RUN] R/O longterm GUP pin in MAP_SHARED file mapping ... with local tmpfile
ok 13 Should have worked
# [RUN] R/O longterm GUP pin in MAP_SHARED file mapping ... with memfd hugetlb (2048 kB)
ok 14 Should have worked
# [RUN] R/O longterm GUP pin in MAP_SHARED file mapping ... with memfd hugetlb (1048576 kB)
ok 15 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_SHARED file mapping ... with memfd
ok 16 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_SHARED file mapping ... with tmpfile
ok 17 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_SHARED file mapping ... with local tmpfile
ok 18 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_SHARED file mapping ... with memfd hugetlb (2048 kB)
ok 19 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_SHARED file mapping ... with memfd hugetlb (1048576 kB)
ok 20 Should have worked
# [RUN] R/W longterm GUP pin in MAP_PRIVATE file mapping ... with memfd
ok 21 Should have worked
# [RUN] R/W longterm GUP pin in MAP_PRIVATE file mapping ... with tmpfile
ok 22 Should have worked
# [RUN] R/W longterm GUP pin in MAP_PRIVATE file mapping ... with local tmpfile
ok 23 Should have worked
# [RUN] R/W longterm GUP pin in MAP_PRIVATE file mapping ... with memfd hugetlb (2048 kB)
ok 24 Should have worked
# [RUN] R/W longterm GUP pin in MAP_PRIVATE file mapping ... with memfd hugetlb (1048576 kB)
ok 25 Should have worked
# [RUN] R/W longterm GUP-fast pin in MAP_PRIVATE file mapping ... with memfd
ok 26 Should have worked
# [RUN] R/W longterm GUP-fast pin in MAP_PRIVATE file mapping ... with tmpfile
ok 27 Should have worked
# [RUN] R/W longterm GUP-fast pin in MAP_PRIVATE file mapping ... with local tmpfile
ok 28 Should have worked
# [RUN] R/W longterm GUP-fast pin in MAP_PRIVATE file mapping ... with memfd hugetlb (2048 kB)
ok 29 Should have worked
# [RUN] R/W longterm GUP-fast pin in MAP_PRIVATE file mapping ... with memfd hugetlb (1048576 kB)
ok 30 Should have worked
# [RUN] R/O longterm GUP pin in MAP_PRIVATE file mapping ... with memfd
ok 31 Should have worked
# [RUN] R/O longterm GUP pin in MAP_PRIVATE file mapping ... with tmpfile
ok 32 Should have worked
# [RUN] R/O longterm GUP pin in MAP_PRIVATE file mapping ... with local tmpfile
ok 33 Should have worked
# [RUN] R/O longterm GUP pin in MAP_PRIVATE file mapping ... with memfd hugetlb (2048 kB)
ok 34 Should have worked
# [RUN] R/O longterm GUP pin in MAP_PRIVATE file mapping ... with memfd hugetlb (1048576 kB)
ok 35 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_PRIVATE file mapping ... with memfd
ok 36 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_PRIVATE file mapping ... with tmpfile
ok 37 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_PRIVATE file mapping ... with local tmpfile
ok 38 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_PRIVATE file mapping ... with memfd hugetlb (2048 kB)
ok 39 Should have worked
# [RUN] R/O longterm GUP-fast pin in MAP_PRIVATE file mapping ... with memfd hugetlb (1048576 kB)
ok 40 Should have worked
# [RUN] io_uring fixed buffer with MAP_SHARED file mapping ... with memfd
ok 41 Should have worked
# [RUN] io_uring fixed buffer with MAP_SHARED file mapping ... with tmpfile
ok 42 Should have worked
# [RUN] io_uring fixed buffer with MAP_SHARED file mapping ... with local tmpfile
ok 43 Should have failed
# [RUN] io_uring fixed buffer with MAP_SHARED file mapping ... with memfd hugetlb (2048 kB)
ok 44 Should have worked
# [RUN] io_uring fixed buffer with MAP_SHARED file mapping ... with memfd hugetlb (1048576 kB)
ok 45 Should have worked
# [RUN] io_uring fixed buffer with MAP_PRIVATE file mapping ... with memfd
ok 46 Should have worked
# [RUN] io_uring fixed buffer with MAP_PRIVATE file mapping ... with tmpfile
ok 47 Should have worked
# [RUN] io_uring fixed buffer with MAP_PRIVATE file mapping ... with local tmpfile
ok 48 Should have worked
# [RUN] io_uring fixed buffer with MAP_PRIVATE file mapping ... with memfd hugetlb (2048 kB)
ok 49 Should have worked
# [RUN] io_uring fixed buffer with MAP_PRIVATE file mapping ... with memfd hugetlb (1048576 kB)
ok 50 Should have worked
# Totals: pass:50 fail:0 xfail:0 xpass:0 skip:0 error:0
This patch (of 3):
Let's factor detection out into vm_util, to be reused by a new test.
Link: https://lkml.kernel.org/r/20230519102723.185721-1-david@redhat.com
Link: https://lkml.kernel.org/r/20230519102723.185721-2-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The test functions are not needed after the module is removed, so mark
them as such. Add __exit to the module removal function. Some other
variables have been marked as const static as well.
Link: https://lkml.kernel.org/r/20230518145544.1722059-20-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Cc: David Binderman <dcb314@hotmail.com>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Vernon Yang <vernon2gm@gmail.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The test code is less useful without debug, but can still do general
validations. Define mt_dump(), mas_dump() and mas_wr_dump() as a noop if
debug is not enabled and document it in the test module information that
more information can be obtained with another kernel config option.
MT_BUG_ON() will report a failures without tree dumps, and the output will
be less useful.
Link: https://lkml.kernel.org/r/20230518145544.1722059-17-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: David Binderman <dcb314@hotmail.com>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Vernon Yang <vernon2gm@gmail.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Allow different formatting strings to be used when dumping the tree.
Currently supports hex and decimal.
Link: https://lkml.kernel.org/r/20230518145544.1722059-6-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: David Binderman <dcb314@hotmail.com>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Vernon Yang <vernon2gm@gmail.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The maple tree node limits are implied by the parent. When walking up the
tree, the limit may not be known until a slot that does not have implied
limits are encountered. However, if the node is the left-most or
right-most node, the walking up to find that limit can be skipped.
This commit also fixes the debug/testing code that was not setting the
limit on walking down the tree as that optimization is not compatible with
this change.
Link: https://lkml.kernel.org/r/20230518145544.1722059-4-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reviewed-by: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: David Binderman <dcb314@hotmail.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Vernon Yang <vernon2gm@gmail.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Test cachestat on a newly created file, /dev/ files, /proc/ files and a
directory. Also test on a shmem file (which can also be tested with
huge pages since tmpfs supports huge pages).
[colin.i.king@gmail.com: fix spelling mistake "trucate" -> "truncate"]
Link: https://lkml.kernel.org/r/20230505110855.2493457-1-colin.i.king@gmail.com
[mpe@ellerman.id.au: avoid excessive stack allocation]
Link: https://lkml.kernel.org/r/877ctfa6yv.fsf@mail.lhotse
Link: https://lkml.kernel.org/r/20230503013608.2431726-4-nphamcs@gmail.com
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Brian Foster <bfoster@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
- Stop trusting capacity data before the "media ready" indication
- Add missing HDM decoder capability enable for the cold-plug case
- Fix a debug message induced crash
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Merge tag 'cxl-fixes-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull compute express link fixes from Dan Williams:
"The 'media ready' series prevents the driver from acting on bad
capacity information, and it moves some checks earlier in the init
sequence which impacts topics in the queue for 6.5.
Additional hotplug testing uncovered a missing enable for memory
decode. A debug crash fix is also included.
Summary:
- Stop trusting capacity data before the "media ready" indication
- Add missing HDM decoder capability enable for the cold-plug case
- Fix a debug message induced crash"
* tag 'cxl-fixes-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl: Explicitly initialize resources when media is not ready
cxl/port: Fix NULL pointer access in devm_cxl_add_port()
cxl: Move cxl_await_media_ready() to before capacity info retrieval
cxl: Wait Memory_Info_Valid before access memory related info
cxl/port: Enable the HDM decoder capability for switch ports
- fix incorrect output in in-tree gpio tools
- fix a shell coding issue in gpio-sim selftests
- correctly set the permissions for debugfs attributes exposed by gpio-mockup
- fix chip name and pin count in gpio-f7188x for one of the supported models
- fix numberspace pollution when using dynamically and statically allocated
GPIOs together
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Merge tag 'gpio-fixes-for-v6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix incorrect output in in-tree gpio tools
- fix a shell coding issue in gpio-sim selftests
- correctly set the permissions for debugfs attributes exposed by
gpio-mockup
- fix chip name and pin count in gpio-f7188x for one of the supported
models
- fix numberspace pollution when using dynamically and statically
allocated GPIOs together
* tag 'gpio-fixes-for-v6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio-f7188x: fix chip name and pin count on Nuvoton chip
gpiolib: fix allocation of mixed dynamic/static GPIOs
gpio: mockup: Fix mode of debugfs files
selftests: gpio: gpio-sim: Fix BUG: test FAILED due to recent change
tools: gpio: fix debounce_period_us output of lsgpio
Current release - regressions:
- net: fix skb leak in __skb_tstamp_tx()
- eth: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs
Current release - new code bugs:
- handshake:
- fix sock->file allocation
- fix handshake_dup() ref counting
- bluetooth:
- fix potential double free caused by hci_conn_unlink
- fix UAF in hci_conn_hash_flush
Previous releases - regressions:
- core: fix stack overflow when LRO is disabled for virtual interfaces
- tls: fix strparser rx issues
- bpf:
- fix many sockmap/TCP related issues
- fix a memory leak in the LRU and LRU_PERCPU hash maps
- init the offload table earlier
- eth: mlx5e:
- do as little as possible in napi poll when budget is 0
- fix using eswitch mapping in nic mode
- fix deadlock in tc route query code
Previous releases - always broken:
- udplite: fix NULL pointer dereference in __sk_mem_raise_allocated()
- raw: fix output xfrm lookup wrt protocol
- smc: reset connection when trying to use SMCRv2 fails
- phy: mscc: enable VSC8501/2 RGMII RX clock
- eth: octeontx2-pf: fix TSOv6 offload
- eth: cdc_ncm: deal with too low values of dwNtbOutMaxSize
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth and bpf.
Current release - regressions:
- net: fix skb leak in __skb_tstamp_tx()
- eth: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs
Current release - new code bugs:
- handshake:
- fix sock->file allocation
- fix handshake_dup() ref counting
- bluetooth:
- fix potential double free caused by hci_conn_unlink
- fix UAF in hci_conn_hash_flush
Previous releases - regressions:
- core: fix stack overflow when LRO is disabled for virtual
interfaces
- tls: fix strparser rx issues
- bpf:
- fix many sockmap/TCP related issues
- fix a memory leak in the LRU and LRU_PERCPU hash maps
- init the offload table earlier
- eth: mlx5e:
- do as little as possible in napi poll when budget is 0
- fix using eswitch mapping in nic mode
- fix deadlock in tc route query code
Previous releases - always broken:
- udplite: fix NULL pointer dereference in __sk_mem_raise_allocated()
- raw: fix output xfrm lookup wrt protocol
- smc: reset connection when trying to use SMCRv2 fails
- phy: mscc: enable VSC8501/2 RGMII RX clock
- eth: octeontx2-pf: fix TSOv6 offload
- eth: cdc_ncm: deal with too low values of dwNtbOutMaxSize"
* tag 'net-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated().
net: phy: mscc: enable VSC8501/2 RGMII RX clock
net: phy: mscc: remove unnecessary phydev locking
net: phy: mscc: add support for VSC8501
net: phy: mscc: add VSC8502 to MODULE_DEVICE_TABLE
net/handshake: Enable the SNI extension to work properly
net/handshake: Unpin sock->file if a handshake is cancelled
net/handshake: handshake_genl_notify() shouldn't ignore @flags
net/handshake: Fix uninitialized local variable
net/handshake: Fix handshake_dup() ref counting
net/handshake: Remove unneeded check from handshake_dup()
ipv6: Fix out-of-bounds access in ipv6_find_tlv()
net: ethernet: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs
docs: netdev: document the existence of the mail bot
net: fix skb leak in __skb_tstamp_tx()
r8169: Use a raw_spinlock_t for the register locks.
page_pool: fix inconsistency for page_pool_ring_[un]lock()
bpf, sockmap: Test progs verifier error with latest clang
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer with drops
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer
...
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2023-05-24
We've added 19 non-merge commits during the last 10 day(s) which contain
a total of 20 files changed, 738 insertions(+), 448 deletions(-).
The main changes are:
1) Batch of BPF sockmap fixes found when running against NGINX TCP tests,
from John Fastabend.
2) Fix a memleak in the LRU{,_PERCPU} hash map when bucket locking fails,
from Anton Protopopov.
3) Init the BPF offload table earlier than just late_initcall,
from Jakub Kicinski.
4) Fix ctx access mask generation for 32-bit narrow loads of 64-bit fields,
from Will Deacon.
5) Remove a now unsupported __fallthrough in BPF samples,
from Andrii Nakryiko.
6) Fix a typo in pkg-config call for building sign-file,
from Jeremy Sowden.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf, sockmap: Test progs verifier error with latest clang
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer with drops
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer
bpf, sockmap: Test shutdown() correctly exits epoll and recv()=0
bpf, sockmap: Build helper to create connected socket pair
bpf, sockmap: Pull socket helpers out of listen test for general use
bpf, sockmap: Incorrectly handling copied_seq
bpf, sockmap: Wake up polling after data copy
bpf, sockmap: TCP data stall on recv before accept
bpf, sockmap: Handle fin correctly
bpf, sockmap: Improved check for empty queue
bpf, sockmap: Reschedule is now done through backlog
bpf, sockmap: Convert schedule_work into delayed_work
bpf, sockmap: Pass skb ownership through read_skb
bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps
bpf: Fix mask generation for 32-bit narrow loads of 64-bit fields
samples/bpf: Drop unnecessary fallthrough
bpf: netdev: init the offload table earlier
selftests/bpf: Fix pkg-config call building sign-file
====================
Link: https://lore.kernel.org/r/20230524170839.13905-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When BPF program drops pkts the sockmap logic 'eats' the packet and
updates copied_seq. In the PASS case where the sk_buff is accepted
we update copied_seq from recvmsg path so we need a new test to
handle the drop case.
Original patch series broke this resulting in
test_sockmap_skb_verdict_fionread:PASS:ioctl(FIONREAD) error 0 nsec
test_sockmap_skb_verdict_fionread:FAIL:ioctl(FIONREAD) unexpected ioctl(FIONREAD): actual 1503041772 != expected 256
After updated patch with fix.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-14-john.fastabend@gmail.com
A bug was reported where ioctl(FIONREAD) returned zero even though the
socket with a SK_SKB verdict program attached had bytes in the msg
queue. The result is programs may hang or more likely try to recover,
but use suboptimal buffer sizes.
Add a test to check that ioctl(FIONREAD) returns the correct number of
bytes.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-13-john.fastabend@gmail.com
When session gracefully shutdowns epoll needs to wake up and any recv()
readers should return 0 not the -EAGAIN they previously returned.
Note we use epoll instead of select to test the epoll wake on shutdown
event as well.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-12-john.fastabend@gmail.com
A common operation for testing is to spin up a pair of sockets that are
connected. Then we can use these to run specific tests that need to
send data, check BPF programs and so on.
The sockmap_listen programs already have this logic lets move it into
the new sockmap_helpers header file for general use.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-11-john.fastabend@gmail.com
No functional change here we merely pull the helpers in sockmap_listen.c
into a header file so we can use these in other programs. The tests we
are about to add aren't really _listen tests so doesn't make sense
to add them here.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-10-john.fastabend@gmail.com
- Fail graciously if BUILD_BPF_SKEL=1 is specified and clang isn't available.
- Add empty 'struct rq' to 'perf lock contention' to satisfy libbpf 'runqueue'
type verification. This feature is built only with BUILD_BPF_SKEL=1.
- Make vmlinux.h use bpf.h and perf_event.h in source directory, not system
ones that may be old and not have things like 'union perf_sample_weight'.
- Add system include paths to BPF builds to pick things missing in the headers
included by clang -target bpf.
- Update various header copies with the kernel sources.
- Change divide by zero and not supported events behavior to show 'nan'/'not
counted' in 'perf stat' output. This happens when using things like
'perf stat -M TopdownL2 true', involving JSON metrics.
- Update no event/metric expectations affected by using JSON metrics in
'perf stat -ddd' perf test.
- Avoid segv with 'perf stat --topdown' for metrics without a group.
- Do not assume which events may have a PMU name, allowing the logic to keep an
AUX event group together. Makes this usecase work again:
$ perf record --no-bpf-event -c 10 -e '{intel_pt//,tlb_flush.stlb_any/aux-sample-size=8192/pp}:u' -- sleep 0.1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.078 MB perf.data ]
$ perf script -F-dso,+addr | grep -C5 tlb_flush.stlb_any | head -11
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc82a2 dl_main+0x9a2 => 7f5350cb38f0 _dl_add_to_namespace_list+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cb3908 _dl_add_to_namespace_list+0x18 => 7f5350cbb080 rtld_mutex_dummy+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc8350 dl_main+0xa50 => 0 [unknown]
sleep 20444 [003] 7939.510244: 1 branches:uH: 7f5350cc83ca dl_main+0xaca => 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510245: 1 branches:uH: 7f5350caeb60 _dl_process_pt_gnu_property+0x0 => 0 [unknown]
sleep 20444 7939.510245: 10 tlb_flush.stlb_any/aux-sample-size=8192/pp: 0 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc87fe dl_main+0xefe => 7f5350ccd240 strcmp+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc8862 dl_main+0xf62 => 0 [unknown]
- Add a check for the above use case in 'perf test test_intel_pt'.
- Fix build with refcount checking on arm64, it was still accessing fields that
need to be wrapped so that the refcounted struct gets checked.
- Fix contextid validation in ARM's CS-ETM, so that older kernels without that
field can still be supported.
- Skip unsupported aggregation for stat events found in perf.data files in 'perf script'.
- Add stat test for record and script to check the previous problem.
- Remove needless debuginfod queries from 'perf test java symbol', this was
just making the test take a long time to complete.
- Address python SafeConfigParser() deprecation warning in 'perf test attr'.
- Fix __NR_execve undeclared on i386 'perf bench syscall' build error.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.4-1-2023-05-20' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fail graciously if BUILD_BPF_SKEL=1 is specified and clang isn't
available
- Add empty 'struct rq' to 'perf lock contention' to satisfy libbpf
'runqueue' type verification. This feature is built only with
BUILD_BPF_SKEL=1
- Make vmlinux.h use bpf.h and perf_event.h in source directory, not
system ones that may be old and not have things like 'union
perf_sample_weight'
- Add system include paths to BPF builds to pick things missing in the
headers included by clang -target bpf
- Update various header copies with the kernel sources
- Change divide by zero and not supported events behavior to show
'nan'/'not counted' in 'perf stat' output.
This happens when using things like 'perf stat -M TopdownL2 true',
involving JSON metrics
- Update no event/metric expectations affected by using JSON metrics in
'perf stat -ddd' perf test
- Avoid segv with 'perf stat --topdown' for metrics without a group
- Do not assume which events may have a PMU name, allowing the logic to
keep an AUX event group together. Makes this usecase work again:
$ perf record --no-bpf-event -c 10 -e '{intel_pt//,tlb_flush.stlb_any/aux-sample-size=8192/pp}:u' -- sleep 0.1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.078 MB perf.data ]
$ perf script -F-dso,+addr | grep -C5 tlb_flush.stlb_any | head -11
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc82a2 dl_main+0x9a2 => 7f5350cb38f0 _dl_add_to_namespace_list+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cb3908 _dl_add_to_namespace_list+0x18 => 7f5350cbb080 rtld_mutex_dummy+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc8350 dl_main+0xa50 => 0 [unknown]
sleep 20444 [003] 7939.510244: 1 branches:uH: 7f5350cc83ca dl_main+0xaca => 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510245: 1 branches:uH: 7f5350caeb60 _dl_process_pt_gnu_property+0x0 => 0 [unknown]
sleep 20444 7939.510245: 10 tlb_flush.stlb_any/aux-sample-size=8192/pp: 0 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc87fe dl_main+0xefe => 7f5350ccd240 strcmp+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc8862 dl_main+0xf62 => 0 [unknown]
- Add a check for the above use case in 'perf test test_intel_pt'
- Fix build with refcount checking on arm64, it was still accessing
fields that need to be wrapped so that the refcounted struct gets
checked
- Fix contextid validation in ARM's CS-ETM, so that older kernels
without that field can still be supported
- Skip unsupported aggregation for stat events found in perf.data files
in 'perf script'
- Add stat test for record and script to check the previous problem
- Remove needless debuginfod queries from 'perf test java symbol', this
was just making the test take a long time to complete
- Address python SafeConfigParser() deprecation warning in 'perf test
attr'
- Fix __NR_execve undeclared on i386 'perf bench syscall' build error
* tag 'perf-tools-fixes-for-v6.4-1-2023-05-20' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (33 commits)
perf bench syscall: Fix __NR_execve undeclared build error
perf test attr: Fix python SafeConfigParser() deprecation warning
perf test attr: Update no event/metric expectations
tools headers disabled-features: Sync with the kernel sources
tools headers UAPI: Sync arch prctl headers with the kernel sources
tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'
tools headers x86 cpufeatures: Sync with the kernel sources
tools headers UAPI: Sync s390 syscall table file that wires up the memfd_secret syscall
tools headers UAPI: Sync linux/prctl.h with the kernel sources
perf metrics: Avoid segv with --topdown for metrics without a group
perf lock contention: Add empty 'struct rq' to satisfy libbpf 'runqueue' type verification
perf cs-etm: Fix contextid validation
perf arm64: Fix build with refcount checking
perf test: Add stat test for record and script
perf script: Skip aggregation for stat events
perf build: Add system include paths to BPF builds
perf bpf skels: Make vmlinux.h use bpf.h and perf_event.h in source directory
perf parse-events: Do not break up AUX event group
perf test test_intel_pt.sh: Test sample mode with event with PMU name
perf evsel: Modify group pmu name for software events
...
- Get rid of a warning message printed by the ACPI cpufreq driver
after recent changes in it when anohter CPU performance scaling
driver is registered already when it starts (Petr Pavlu).
- Make cpupower read TSC on each CPU right before reading MPERF so as
to reduce the potential time difference between the TSC and MPERF
accesses and improve the C0 percentage calculation (Wyes Karny).
- Fix a possible file handle leak and clean up the code in the
sysfs_get_enabled() function in cpupower (Hao Zeng).
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Merge tag 'pm-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two issues in the cpupower utility and get rid of a spurious
warning message printed to the kernel log by the ACPI cpufreq driver
after recent changes.
Specifics:
- Get rid of a warning message printed by the ACPI cpufreq driver
after recent changes in it when anohter CPU performance scaling
driver is registered already when it starts (Petr Pavlu)
- Make cpupower read TSC on each CPU right before reading MPERF so as
to reduce the potential time difference between the TSC and MPERF
accesses and improve the C0 percentage calculation (Wyes Karny)
- Fix a possible file handle leak and clean up the code in the
sysfs_get_enabled() function in cpupower (Hao Zeng)"
* tag 'pm-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: ACPI: Prevent a warning when another frequency driver is loaded
cpupower: Make TSC read per CPU for Mperf monitor
cpupower:Fix resource leaks in sysfs_get_enabled()
The __NR_execve definition for i386 was deleted by mistake
in the commit ece7f7c050 ("perf bench syscall: Add fork
syscall benchmark"), add it to fix the build error on i386.
Fixes: ece7f7c050 ("perf bench syscall: Add fork syscall benchmark")
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: loongson-kernel@lists.loongnix.cn
Closes: https://lore.kernel.org/all/CA+G9fYvgBR1iB0CorM8OC4AM_w_tFzyQKHc+rF6qPzJL=TbfDQ@mail.gmail.com/
Link: https://lore.kernel.org/r/1684480657-2375-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This cpupower fixes update for Linux 67.4-rc3 consists of:
- a resource leak fix
- fix drift in C0 percentage calculation due to System-wide TSC read.
To lower this drift read TSC per CPU and also just after mperf read.
This technique improves C0 percentage calculation in Mperf monitor
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Merge tag 'linux-cpupower-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux
Pull cpupower utility fixes for 6.4-rc3 from Shuah Khan:
"This cpupower fixes update for Linux 67.4-rc3 consists of:
- a resource leak fix
- fix drift in C0 percentage calculation due to System-wide TSC read.
To lower this drift read TSC per CPU and also just after mperf read.
This technique improves C0 percentage calculation in Mperf monitor"
* tag 'linux-cpupower-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
cpupower: Make TSC read per CPU for Mperf monitor
cpupower:Fix resource leaks in sysfs_get_enabled()
Address the warning:
```
tests/attr.py:155: DeprecationWarning: The SafeConfigParser class has
been renamed to ConfigParser in Python 3.2. This alias will be
removed in Python 3.12. Use ConfigParser directly instead.
parser = configparser.SafeConfigParser()
```
by removing the word 'Safe'.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20230517225707.2682235-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Previously hard coded events/metrics were used, update for the use of
the TopdownL1 json metric group.
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fixes: 94b1a603fc ("perf stat: Add TopdownL1 metric as a default if present")
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20230517225707.2682235-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In the end of the test, there will be an error message induced by the
`ip netns del ns1` command in cleanup()
Tests passed: 201
Tests failed: 0
Cannot remove namespace file "/run/netns/ns1": No such file or directory
This can even be reproduced with just `./fib_tests.sh -h` as we're
calling cleanup() on exit.
Redirect the error message to /dev/null to mute it.
V2: Update commit message and fixes tag.
V3: resubmit due to missing netdev ML in V2
Fixes: b60417a9f2 ("selftest: fib_tests: Always cleanup before exit")
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move cxl_await_media_ready() to cxl_pci probe before driver starts issuing
IDENTIFY and retrieving memory device information to ensure that the
device is ready to provide the information. Allow cxl_pci_probe() to succeed
even if media is not ready. Cache the media failure in cxlds and don't ask
the device for any media information.
The rationale for proceeding in the !media_ready case is to allow for
mailbox operations to interrogate and/or remediate the device. After
media is repaired then rebinding the cxl_pci driver is expected to
restart the capacity scan.
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Fixes: b39cb1052a ("cxl/mem: Register CXL memX devices")
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/168445310026.3251520.8124296540679268206.stgit@djiang5-mobl3
[djbw: fixup cxl_test]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Derick noticed, when testing hot plug, that hot-add behaves nominally
after a removal. However, if the hot-add is done without a prior
removal, CXL.mem accesses fail. It turns out that the original
implementation of the port driver and region programming wrongly assumed
that platform-firmware always enables the host-bridge HDM decoder
capability. Add support turning on switch-level HDM decoders in the case
where platform-firmware has not.
The implementation is careful to only arrange for the enable to be
undone if the current instance of the driver was the one that did the
enable. This is to interoperate with platform-firmware that may expect
CXL.mem to remain active after the driver is shutdown. This comes at the
cost of potentially not shutting down the enable on kexec flows, but it
is mitigated by the fact that the related HDM decoders still need to be
enabled on an individual basis.
Cc: <stable@vger.kernel.org>
Reported-by: Derick Marks <derick.w.marks@intel.com>
Fixes: 54cdbf845c ("cxl/port: Add a driver for 'struct cxl_port' objects")
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/168437998331.403037.15719879757678389217.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
bluetooth and netfilter.
Current release - regressions:
- ipv6: fix RCU splat in ipv6_route_seq_show()
- wifi: iwlwifi: disable RFI feature
Previous releases - regressions:
- tcp: fix possible sk_priority leak in tcp_v4_send_reset()
- tipc: do not update mtu if msg_max is too small in mtu negotiation
- netfilter: fix null deref on element insertion
- devlink: change per-devlink netdev notifier to static one
- phylink: fix ksettings_set() ethtool call
- wifi: mac80211: fortify the spinlock against deadlock by interrupt
- wifi: brcmfmac: check for probe() id argument being NULL
- eth: ice:
- fix undersized tx_flags variable
- fix ice VF reset during iavf initialization
- eth: hns3: fix sending pfc frames after reset issue
Previous releases - always broken:
- xfrm: release all offloaded policy memory
- nsh: use correct mac_offset to unwind gso skb in nsh_gso_segment()
- vsock: avoid to close connected socket after the timeout
- dsa: rzn1-a5psw: enable management frames for CPU port
- eth: virtio_net: fix error unwinding of XDP initialization
- eth: tun: fix memory leak for detached NAPI queue.
Misc:
- MAINTAINERS: sctp: move Neil to CREDITS
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from can, xfrm, bluetooth and netfilter.
Current release - regressions:
- ipv6: fix RCU splat in ipv6_route_seq_show()
- wifi: iwlwifi: disable RFI feature
Previous releases - regressions:
- tcp: fix possible sk_priority leak in tcp_v4_send_reset()
- tipc: do not update mtu if msg_max is too small in mtu negotiation
- netfilter: fix null deref on element insertion
- devlink: change per-devlink netdev notifier to static one
- phylink: fix ksettings_set() ethtool call
- wifi: mac80211: fortify the spinlock against deadlock by interrupt
- wifi: brcmfmac: check for probe() id argument being NULL
- eth: ice:
- fix undersized tx_flags variable
- fix ice VF reset during iavf initialization
- eth: hns3: fix sending pfc frames after reset issue
Previous releases - always broken:
- xfrm: release all offloaded policy memory
- nsh: use correct mac_offset to unwind gso skb in nsh_gso_segment()
- vsock: avoid to close connected socket after the timeout
- dsa: rzn1-a5psw: enable management frames for CPU port
- eth: virtio_net: fix error unwinding of XDP initialization
- eth: tun: fix memory leak for detached NAPI queue.
Misc:
- MAINTAINERS: sctp: move Neil to CREDITS"
* tag 'net-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (107 commits)
MAINTAINERS: skip CCing netdev for Bluetooth patches
mdio_bus: unhide mdio_bus_init prototype
bridge: always declare tunnel functions
atm: hide unused procfs functions
net: isa: include net/Space.h
Revert "ARM: dts: stm32: add CAN support on stm32f746"
netfilter: nft_set_rbtree: fix null deref on element insertion
netfilter: nf_tables: fix nft_trans type confusion
netfilter: conntrack: define variables exp_nat_nla_policy and any_addr with CONFIG_NF_NAT
net: wwan: t7xx: Ensure init is completed before system sleep
net: selftests: Fix optstring
net: pcs: xpcs: fix C73 AN not getting enabled
net: wwan: iosm: fix NULL pointer dereference when removing device
vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit()
mailmap: add entries for Nikolay Aleksandrov
igb: fix bit_shift to be in [1..8] range
net: dsa: mv88e6xxx: Fix mv88e6393x EPC write command offset
cassini: Fix a memory leak in the error handling path of cas_init_one()
tun: Fix memory leak for detached NAPI queue.
can: kvaser_pciefd: Disable interrupts in probe error path
...
This Kselftest fixes update for Linux 6.4-rc3 consists of:
- sgx test fix for false negatives.
- ftrace output is hard to parses and it masks inappropriate skips etc.
This fix addresses the problems by integrating with kselftest runner.
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Merge tag 'linux-kselftest-fixes-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
- sgx test fix for false negatives
- ftrace output is hard to parses and it masks inappropriate skips etc.
This fix addresses the problems by integrating with kselftest runner
* tag 'linux-kselftest-fixes-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/ftrace: Improve integration with kselftest runner
selftests/sgx: Add "test_encl.elf" to TEST_FILES
To pick the changes from:
e0bddc19ba ("x86/mm: Reduce untagged_addr() overhead for systems without LAM")
This only causes these perf files to be rebuilt:
CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o
And addresses this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/ZGTpdlzrlRjjnY6K@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This is to get the changes from:
68674f94ff ("x86: don't use REP_GOOD or ERMS for small memory copies")
20f3337d35 ("x86: don't use REP_GOOD or ERMS for small memory clearing")
This also make the 'perf bench mem' files stop referring to the erms
versions that gone away with the above patches.
That addresses these perf tools build warning:
Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S'
diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S
Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S'
diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the changes from:
3d8f61bf8b ("x86: KVM: Add common feature flag for AMD's PSFD")
3763bf5802 ("x86/cpufeatures: Redefine synthetic virtual NMI bit as AMD's "real" vNMI")
6449dcb0ca ("x86: CPUID and CR3/CR4 flags for Linear Address Masking")
be8de49bea ("x86/speculation: Identify processors vulnerable to SMT RSB predictions")
e7862eda30 ("x86/cpu: Support AMD Automatic IBRS")
faabfcb194 ("x86/cpu, kvm: Add the SMM_CTL MSR not present feature")
5b909d4ae5 ("x86/cpu, kvm: Add the Null Selector Clears Base feature")
84168ae786 ("x86/cpu, kvm: Move X86_FEATURE_LFENCE_RDTSC to its native leaf")
a9dc9ec5a1 ("x86/cpu, kvm: Add the NO_NESTED_DATA_BP feature")
f8df91e73a ("x86/cpufeatures: Add macros for Intel's new fast rep string features")
78335aac61 ("x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag")
f334f723a6 ("x86/cpufeatures: Add Slow Memory Bandwidth Allocation feature flag")
a018d2e3d4 ("x86/cpufeatures: Add Architectural PerfMon Extension bit")
This causes these perf files to be rebuilt and brings some X86_FEATURE
that will be used when updating the copies of
tools/arch/x86/lib/mem{cpy,set}_64.S with the kernel sources:
CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o
And addresses this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Jim Mattson <jmattson@google.com>
Cc: Babu Moger <babu.moger@amd.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/lkml/ZGTTw642q8mWgv2Y@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The cited commit added a stray colon to the 'v' option. That makes the
option work incorrectly.
ex:
tools/testing/selftests/net# ./fib_nexthops.sh -v
(should enable verbose mode, instead it shows help text due to missing arg)
Fixes: 5feba47273 ("selftests: fib_nexthops: Make ping timeout configurable")
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To pick the changes in these csets:
7608f70adc ("s390: wire up memfd_secret system call")
That add support for this new syscall in tools such as 'perf trace'.
For instance, this is now possible (adapted from the x86_64 test output):
# perf trace -v -e memfd_secret
event qualifier tracepoint filter: (common_pid != 13375 && common_pid != 3713) && (id == 447)
^C#
That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.
$ grep memfd_secret tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
447 common memfd_secret sys_memfd_secret
$
This addresses this perf build warnings:
Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/lkml/ZGPMW0p++D1Jdvf6@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
ddc65971bb ("prctl: add PR_GET_AUXV to copy auxv to userspace")
To pick the changes in:
That don't result in any changes in tooling:
$ tools/perf/trace/beauty/prctl_option.sh > before
$ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h
$ tools/perf/trace/beauty/prctl_option.sh > after
$ diff -u before after
$
This actually adds a new prctl arg, but it has to be dealt with
differently, as it is not in sequence with the other arguments.
Just silences this perf tools build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h'
diff -u tools/include/uapi/linux/prctl.h include/uapi/linux/prctl.h
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
